...
- One or more specific Data Usage Policies , ; i.e (https://fdw.fews.net/api/datasourcedocument/?format=xml&data_usage_policy=public)
- One or more countries ; i.e (https://fdw.fews.net/api/datasourcedocument/?format=xml&country=Kenya&country=Uganda or https://fdw.fews.net/api/datasourcedocument/?format=xml&country_code=KE&country_code=UG
...